Fabrice Fairy, Georgetown CA

Fabrice Fairy, Georgetown CA

Patent application number

Description

Published

20080199553

Hot Runner Actuator - An actuator for a hot runner has a piston and a valve pin holder threadably connected to the piston. The piston can be translated by fluid pressure and rotated by an electric motor. The valve pin holder is rotationally fixed, and therefore moves along the thread when the piston is rotated. A valve pin connected to the valve pin holder moves in response to fluid pressure and also in response to the electric motor rotating the piston.

08-21-2008

20080279979

Injection Molding Nozzle With Valve Pin Alignment - An injection molding apparatus is disclosed that includes a valve-gated nozzle having a nozzle tip assembly and a valve pin slidably disposed therein. The nozzle tip assembly includes a nozzle liner having a first valve pin guiding portion, a valve pin guide having a second valve pin guiding portion upstream of the first valve pin guiding portion, and a transfer seal having a bore for receiving the nozzle liner and the valve pin guide therein. The transfer seal bore includes an alignment surface that surrounds the nozzle liner and the valve pin guide to align the first and second valve pin guiding portions with the mold gate, such that the valve pin is accurately aligned during operation. The transfer seal also includes means to couple the nozzle tip assembly to the nozzle body.

11-13-2008

20080317898

EDGE-GATED NOZZLE - An injection molding apparatus includes a manifold having a manifold melt channel for receiving a melt stream of moldable material under pressure and at least one nozzle having a nozzle melt channel in fluid communication with the manifold melt channel. The nozzle has an opening that intersects with the nozzle melt channel, the opening having a central axis that is at an angle with respect to a central axis of the nozzle. A nozzle tip is coupled to the nozzle at one end of the opening. A valve pin bushing is coupled to the nozzle at an end of the opening opposite the nozzle tip. A valve pin extends through the opening. A primary actuator is connected to the valve pin. A nozzle locator piece is connected to the nozzle for mating with a side plate to locate the nozzle with respect to the mold gate.

12-25-2008

20090061042

Injection Molding Apparatus Having a Valve Pin Bushing - An injection molding apparatus, such as a hot runner or hot half, includes a manifold having a manifold channel and a nozzle having a nozzle channel. The nozzle is coupled to the manifold, and the manifold channel and the nozzle channel are in communication to define a flow channel. A valve pin bushing has a flow restrictor disposed in the flow channel on an upstream side of the valve pin bushing. A moveable valve pin extends through a bore of the valve pin bushing.

03-05-2009

20090102099

Injection Molding Apparatus Having Magnetic Valve Pin Coupling - A magnetic coupling for an injection molding apparatus, such as a hot half or hot runner, includes a first magnetic part for connection to an actuator, a valve pin plate, or the like and a movable second magnetic part for connection to a valve pin. The first magnetic part and the second magnetic part are coupled by a magnetic force. The first magnetic part can be part of the actuator. The second magnetic part can be part of the valve pin. A valve pin plate can be provided for a plurality of valve pins.

04-23-2009

20090142440

Multi-Piece Valve Pin Bushing - A bushing body has an upstream portion and a downstream portion for extending into a channel. The bushing body has a bore therethrough for receiving a valve pin. A contoured sleeve is fit around the downstream portion of the bushing body for guiding a flow of molding material. A cap piece is coupled to the upstream portion of the bushing body for contacting a back plate.

06-04-2009

20090181120

Injection Molding Apparatus Having Movable Yoke Plate - A coinjection molding apparatus includes a manifold, a nozzle body coupled to the manifold, a sleeve disposed within the nozzle body and defining an outer melt channel between the sleeve and the nozzle body, a pin disposed within the sleeve and defining an inner melt channel between the pin and the sleeve, and a nozzle tip having an alignment portion contacting the sleeve. The sleeve is actuated to open and close melt communication of the outer melt channel and a cavity gate. The pin is actuated to open and close melt communication of the inner melt channel and an opening of the sleeve. The alignment portion aligns the sleeve with the cavity gate along the actuated range of the sleeve.

07-16-2009

20100034920

Melt Transfer Components for a Stack Molding System - A stack molding apparatus is disclosed having a stationary mold platen and a movable mold platen defining a parting line. The apparatus has a melt transfer nozzle extending within a well in the stationary mold platen, the melt transfer nozzle defining a melt channel for receiving and transporting a melt stream. The apparatus also includes a melt transfer component having a spigot portion, a melt channel and an aperture in a sealing surface thereof, wherein the melt transfer component is fixedly attached to the stationary mold platen such that the sealing surface defines a portion of the parting line. The spigot portion is slidably fit within the melt channel of the melt transfer nozzle so that the melt channels are in fluid communication. When the stack molding apparatus is brought to an operating temperature, the melt transfer nozzle slides over the spigot portion to accommodate thermal expansion.

02-11-2010

20120070531

Injection Molding Apparatus Having A Valve Pin Bushing - An injection molding apparatus, such as a hot runner or hot half, includes a manifold having a manifold channel and a nozzle having a nozzle channel. The nozzle is coupled to the manifold, and the manifold channel and the nozzle channel are in communication to define a flow channel. A valve pin bushing has a flow restrictor disposed in the flow channel on an upstream side of the valve pin bushing. A moveable valve pin extends through a bore of the valve pin bushing.

03-22-2012

20120227235

Method of Taking a Nozzle of a Valve Gated Hot Runner Apparatus Out of Service - A method for taking a nozzle of a valve gated runner apparatus includes releasably attaching a valve pin to a movable part of an actuator for moving the valve pin between an open position and a closed position and detaching the valve pin from the actuator by moving the movable part of the actuator towards the open position when the valve pin is immobilized. The valve pin and the movable part valve pin may be releasably attached by a magnetic force. The step of detaching the valve pin from the actuator may be accomplished by overcoming the magnetic force. A valve pin plate can be provided for a plurality of valve pins to be releasably attached to the actuator.